import os, json, base64
from io import BytesIO
from pathlib import Path
from PIL import Image
from pptx import Presentation
from pptx.util import Inches, Pt
from pptx.enum.text import PP_ALIGN, MSO_ANCHOR
from pptx.enum.shapes import MSO_SHAPE
from pptx.dml.color import RGBColor

ROOT=Path('/tmp/workspace/home_ergonomics')
ASSETS=ROOT/'assets'; OUT=ROOT/'output'/'HOME_Ergonomics_Workshop_Dr_Manvi_Dhyani.pptx'
W,H=13.333,7.5
NAVY=RGBColor(12,37,54); TEAL=RGBColor(23,126,132); MINT=RGBColor(202,235,227); CREAM=RGBColor(247,244,238); GOLD=RGBColor(233,181,76); WHITE=RGBColor(255,255,255); SLATE=RGBColor(66,83,94); PALE=RGBColor(231,240,239); RED=RGBColor(179,68,63)

# Decode generated realistic image assets returned by the image tool
records=json.loads((ASSETS/'images.json').read_text())
imgs=[]
for n,r in enumerate(records):
    data=r.get('base64')
    if data and ',' in data: data=data.split(',',1)[1]
    p=ASSETS/f'exercise_{n+1}.png'
    p.write_bytes(base64.b64decode(data))
    imgs.append(p)

prs=Presentation(); prs.slide_width=Inches(W); prs.slide_height=Inches(H)
blank=prs.slide_layouts[6]

def bg(slide,color=CREAM):
    fill=slide.background.fill; fill.solid(); fill.fore_color.rgb=color

def shape(slide,typ,x,y,w,h,fill,line=None,r=0):
    s=slide.shapes.add_shape(typ, Inches(x), Inches(y), Inches(w), Inches(h))
    s.fill.solid(); s.fill.fore_color.rgb=fill
    s.line.color.rgb = line if line else fill
    return s

def text(slide,txt,x,y,w,h,size=20,color=NAVY,bold=False,font='Aptos',align=None,margin=0.05):
    box=slide.shapes.add_textbox(Inches(x), Inches(y), Inches(w), Inches(h))
    tf=box.text_frame; tf.clear(); tf.word_wrap=True
    tf.margin_left=tf.margin_right=Inches(margin); tf.margin_top=tf.margin_bottom=Inches(margin)
    p=tf.paragraphs[0]; p.text=txt; p.font.name=font; p.font.size=Pt(size); p.font.bold=bold; p.font.color.rgb=color
    if align: p.alignment=align
    return box

def footer(slide, n, dark=False):
    c=WHITE if dark else TEAL
    text(slide,'HOME  |  House of Movement & Excellence',0.55,7.12,5.7,0.18,8,c,True)
    text(slide,f'{n:02d}',12.1,7.10,0.55,0.18,8,c,True,align=PP_ALIGN.RIGHT)

def title(slide,kicker,heading,sub='',n=1):
    text(slide,kicker.upper(),0.63,0.45,4.8,0.25,10,TEAL,True)
    text(slide,heading,0.58,0.78,11.6,0.70,28,NAVY,True)
    if sub: text(slide,sub,0.63,1.55,11.5,0.48,13,SLATE)
    shape(slide,MSO_SHAPE.RECTANGLE,0.63,2.13,1.0,0.06,TEAL)
    footer(slide,n)

def add_photo(slide,path,x,y,w,h):
    # cover crop while preserving a professional photo crop
    im=Image.open(path); iw,ih=im.size; target=w/h
    if iw/ih > target:
        neww=int(ih*target); left=(iw-neww)//2; im=im.crop((left,0,left+neww,ih))
    else:
        newh=int(iw/target); top=(ih-newh)//2; im=im.crop((0,top,iw,top+newh))
    buf=BytesIO(); im.save(buf,format='PNG'); buf.seek(0)
    slide.shapes.add_picture(buf,Inches(x),Inches(y),Inches(w),Inches(h))

def new():
    s=prs.slides.add_slide(blank); bg(s); return s

# 1 Cover
s=new(); bg(s,NAVY)
shape(s,MSO_SHAPE.OVAL,9.4,-1.2,5.3,5.3,TEAL); shape(s,MSO_SHAPE.OVAL,10.7,4.7,2.2,2.2,GOLD)
text(s,'WORK SMARTER.\nMOVE BETTER.',0.68,1.05,8.2,1.45,35,WHITE,True)
text(s,'Ergonomics, Movement & Lifestyle',0.72,2.78,7.7,0.42,19,MINT)
text(s,'A practical session for more comfortable, sustainable workdays.',0.72,3.40,6.9,0.42,15,WHITE)
shape(s,MSO_SHAPE.ROUNDED_RECTANGLE,0.72,5.20,4.15,0.62,TEAL)
text(s,'HOME  |  House of Movement & Excellence',0.92,5.38,3.8,0.20,10,WHITE,True)
text(s,'Speaker: Dr. Manvi Dhyani',0.72,6.35,5.2,0.3,14,WHITE,True)
text(s,'Saket, Delhi',0.72,6.70,2.0,0.2,10,MINT)

# 2
s=new(); title(s,'Today','A better workday is designed, not endured.','Set up well. Move often. Build capacity. Recover well.',2)
items=[('01','UNDERSTAND','Why discomfort builds up'),('02','ADJUST','Make your workstation work for you'),('03','MOVE','Use short resets through the day'),('04','SUSTAIN','Build habits that support recovery')]
for i,(num,hd,tx) in enumerate(items):
 x=.7+i*3.1; shape(s,MSO_SHAPE.ROUNDED_RECTANGLE,x,2.75,2.65,2.55,WHITE)
 text(s,num,x+.20,3.03,.5,.35,15,TEAL,True); text(s,hd,x+.20,3.62,2.1,.30,15,NAVY,True); text(s,tx,x+.20,4.12,2.1,.55,12,SLATE)
text(s,'Small changes repeated consistently can make the biggest difference.',.7,6.08,10,.35,17,TEAL,True)

#3 discomfort
s=new(); title(s,'The pattern','Why discomfort builds up','Usually it is a mix of exposure and recovery, rather than one "bad" posture.',3)
parts=[('STATIC LOAD','Staying in one position too long'),('AWKWARD REACH','Screen, mouse or laptop placed poorly'),('REPETITION','Typing, clicking and scrolling without variety'),('RECOVERY GAP','Sleep, stress, movement and workload affect capacity')]
for i,(a,b) in enumerate(parts):
 x=.7+(i%2)*6.05; y=2.65+(i//2)*1.6
 shape(s,MSO_SHAPE.ROUNDED_RECTANGLE,x,y,5.5,1.2,WHITE)
 text(s,a,x+.25,y+.22,4.8,.25,14,TEAL,True); text(s,b,x+.25,y+.62,4.8,.28,12,SLATE)
text(s,'Reduce strain by improving setup, changing position and building physical capacity.',.72,6.05,11.5,.40,16,NAVY,True)

#4 workstation
s=new(); title(s,'Workstation essentials','Set up for comfort','Aim for supported, close and adjustable.',4)
items=[('Feet','Supported on the floor or footrest'),('Low back','Sit back with lumbar support'),('Screen','Directly ahead, near eye level'),('Hands','Keyboard and mouse close, wrists neutral'),('Shoulders','Relaxed, elbows close to the body')]
for i,(a,b) in enumerate(items):
 y=2.48+i*.72; shape(s,MSO_SHAPE.OVAL,.78,y,.38,.38,TEAL); text(s,str(i+1),.78,y+.07,.38,.18,10,WHITE,True,align=PP_ALIGN.CENTER)
 text(s,a,1.35,y-.02,1.65,.25,14,NAVY,True); text(s,b,3.08,y-.02,6.6,.30,12,SLATE)
shape(s,MSO_SHAPE.ROUNDED_RECTANGLE,10.1,2.57,2.18,3.55,NAVY)
text(s,'SUPPORTED\n\nCLOSE\n\nADJUSTABLE',10.34,3.12,1.7,2.5,15,WHITE,True,align=PP_ALIGN.CENTER)

#5 laptop
s=new(); title(s,'Laptop work','Make laptop work less demanding','A raised screen plus a separate keyboard and mouse keeps the setup balanced.',5)
for i,(a,b) in enumerate([('1','Raise the screen'),('2','Use an external keyboard'),('3','Add a separate mouse'),('4','Keep the screen directly ahead')]):
 y=2.62+i*.72; text(s,a,.8,y,.55,.3,16,TEAL,True); text(s,b,1.40,y,4.7,.3,14,NAVY,True)
shape(s,MSO_SHAPE.ROUNDED_RECTANGLE,7.15,2.45,4.9,3.28,PALE)
text(s,'For longer calls',7.55,2.88,3.7,.34,17,NAVY,True); text(s,'Use a headset or speakerphone.\nAvoid holding a phone between shoulder and ear.',7.55,3.48,3.85,.90,15,SLATE)
text(s,'No equipment available? Use shorter screen blocks and change position more often.',7.55,4.74,3.85,.55,13,TEAL,True)

#6 resets
s=new(); title(s,'Reset','The 10-second workstation reset','Use at the start of focused work or after a long meeting.',6)
steps=['Feet supported','Sit back','Support the low back','Relax shoulders','Bring keyboard close','Straight wrists','Screen ahead','Three slow breaths']
for i,st in enumerate(steps):
 x=.75+(i%4)*3.05; y=2.55+(i//4)*1.55
 shape(s,MSO_SHAPE.ROUNDED_RECTANGLE,x,y,2.6,.9,WHITE)
 text(s,f'{i+1:02d}',x+.18,y+.19,.38,.22,11,TEAL,True); text(s,st,x+.68,y+.16,1.7,.43,12,NAVY,True)

# Exercise template
exercises=[
('Chin tuck','Gently glide the chin straight back. Keep the gaze level.','8 repetitions','NECK RESET',imgs[0]),
('Side neck stretch','Tip the ear gently towards the shoulder. Keep the opposite shoulder relaxed.','20 seconds each side','NECK MOBILITY',imgs[1]),
('Shoulder blade squeeze','Draw the shoulder blades back and slightly down. Avoid shrugging.','10 repetitions','UPPER-BACK ACTIVATION',imgs[2]),
('Chest opener','Lift through the chest and gently draw the arms back. Stay comfortable.','2 x 20 seconds','FRONT-OF-CHEST RESET',imgs[3]),
('Seated thoracic rotation','Rotate through the upper back while keeping the pelvis steady.','5 each side','UPPER-BACK MOBILITY',imgs[4]),
('Sit to stand','Stand up with control, then sit down slowly. Keep knees aligned.','8-12 repetitions','LOWER-BODY RESET',imgs[5]),
('Wrist stretch','Straighten the elbow gently and stretch the wrist without forcing it.','20 seconds each side','WRIST & FOREARM RESET',imgs[6]),
('Calf raises','Rise smoothly onto the balls of the feet, then lower with control.','12 repetitions','CIRCULATION BREAK',imgs[7]),
]
for idx,(name,desc,dose,kicker,img) in enumerate(exercises,7):
 s=new(); bg(s,NAVY)
 add_photo(s,img,7.34,0,5.99,7.5)
 shape(s,MSO_SHAPE.RECTANGLE,7.34,0,5.99,7.5,NAVY) # slight photographic clarity replacement? no overlay
 # overlay only thin dark column is omitted; photo stays clear
 text(s,kicker,.72,.68,5.8,.25,10,MINT,True)
 text(s,name,.68,1.14,6.0,.55,28,WHITE,True)
 shape(s,MSO_SHAPE.RECTANGLE,.72,1.95,.88,.06,GOLD)
 text(s,desc,.72,2.45,5.8,1.08,16,WHITE)
 shape(s,MSO_SHAPE.ROUNDED_RECTANGLE,.72,4.38,3.05,.76,TEAL)
 text(s,dose,.94,4.64,2.6,.23,13,WHITE,True)
 text(s,'Move in a comfortable range.',.72,5.70,5.2,.26,13,MINT)
 text(s,'HOME  |  House of Movement & Excellence',.72,7.10,5.6,.18,8,MINT,True)
 text(s,f'{idx:02d}',6.55,7.10,.35,.18,8,MINT,True,align=PP_ALIGN.RIGHT)

# 15 lifestyle
s=new(); title(s,'Beyond the desk','Four pillars for a sustainable workday','Your workstation matters, and so do your movement, recovery and physical capacity.',15)
items=[('MOVE','Regular activity you enjoy'),('STRENGTHEN','Build capacity twice weekly'),('RECOVER','Protect sleep and decompress'),('FUEL','Hydrate and eat regular balanced meals')]
for i,(a,b) in enumerate(items):
 x=.72+(i%2)*6.05; y=2.55+(i//2)*1.55
 shape(s,MSO_SHAPE.ROUNDED_RECTANGLE,x,y,5.5,1.12,WHITE)
 text(s,a,x+.28,y+.19,2.0,.25,14,TEAL,True); text(s,b,x+.28,y+.59,4.7,.28,13,SLATE)
text(s,'Start small: a 10-minute walk after lunch is a useful first step.',.72,6.05,10.5,.32,16,NAVY,True)

#16 act early
s=new(); title(s,'Act early','When discomfort starts','Respond early and keep moving within a comfortable range.',16)
for i,(a,b) in enumerate([('REVIEW','Check the chair, screen, mouse and workload.'),('REPOSITION','Stand, walk or change the task.'),('REDUCE','Temporarily reduce continuous exposure.'),('REBUILD','Stay active and return gradually.')]):
 y=2.48+i*.77; text(s,'R',.82,y,.5,.3,21,TEAL,True); text(s,a,1.45,y+.03,1.7,.25,14,NAVY,True); text(s,b,3.25,y+.03,7.1,.30,13,SLATE)
shape(s,MSO_SHAPE.ROUNDED_RECTANGLE,.75,5.95,11.35,.58,PALE)
text(s,'Seek a physiotherapy assessment if symptoms persist, recur or affect work, sleep or daily life.',.98,6.14,10.9,.20,12,NAVY,True)

#17 takeaway
s=new(); title(s,'Take-home message','The 5-part workday formula','A sustainable workday is designed, not endured.',17)
formula=['SET UP WELL','MOVE OFTEN','BUILD CAPACITY','RECOVER WELL','ACT EARLY']
for i,f in enumerate(formula):
 x=.54+i*2.52; shape(s,MSO_SHAPE.ROUNDED_RECTANGLE,x,3.18,2.23,.88,TEAL if i in (0,4) else WHITE)
 text(s,f,x+.12,3.47,1.99,.26,12,WHITE if i in (0,4) else NAVY,True,align=PP_ALIGN.CENTER)
 if i<4: text(s,'+',x+2.28,3.43,.22,.25,18,GOLD,True)
text(s,'One small change today can support a better tomorrow.',2.0,5.18,9.2,.4,18,TEAL,True,align=PP_ALIGN.CENTER)

#18 HOME advertisement
s=new(); bg(s,NAVY)
shape(s,MSO_SHAPE.OVAL,8.6,-1.3,5.4,5.4,TEAL); shape(s,MSO_SHAPE.OVAL,9.7,4.9,2.45,2.45,GOLD)
text(s,'HOME',.73,.92,4.2,.62,37,WHITE,True)
text(s,'House of Movement & Excellence',.78,1.69,7.5,.35,18,MINT,True)
shape(s,MSO_SHAPE.RECTANGLE,.78,2.32,1.15,.06,GOLD)
text(s,'Move with confidence.\nFeel at home in your body.',.78,2.82,6.7,1.05,25,WHITE,True)
text(s,'Physiotherapy | Movement | Recovery',.78,4.28,5.5,.28,15,MINT)
shape(s,MSO_SHAPE.ROUNDED_RECTANGLE,.78,5.14,3.18,.63,TEAL)
text(s,'SAKET, DELHI',1.04,5.35,2.65,.20,12,WHITE,True,align=PP_ALIGN.CENTER)
text(s,'Dr. Manvi Dhyani',.78,6.27,4.2,.30,16,WHITE,True)
text(s,'HOME  |  House of Movement & Excellence',.78,6.75,6.2,.18,10,MINT,True)

# Minimal metadata
prs.core_properties.title='HOME Ergonomics, Movement & Lifestyle'
prs.core_properties.subject='Corporate ergonomics workshop'
prs.core_properties.author='Dr. Manvi Dhyani | HOME'
prs.save(OUT)
print(OUT)

Successfully replaced 1 instance(s) of the string in '/tmp/workspace/home_ergonomics/src/build_home_deck.py'